ANL HP series

High Power Diode Pumped Nanosecond Amplifier Systems
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  • Up to 3.7 J at 1064 nm output pulse energy
  • Up to 1 kHz repetition rate
  • Multi-channel version 2 J per channel at 1064 nm
  • Pulse durations from 2 ns to 500 ns
  • Burst version available
  • Up to 3.7 J at 1064 nm output pulse energy
  • Up to 1 kHz repetition rate
  • Multi-channel version 2 J per channel at 1064 nm
  • Pulse durations from 2 ns to 500 ns
  • Burst version available

Features

Features

  • Up to 3.7 J at 1064 nm output pulse energy
  • Up to 1 kHz repetition rate
  • Multi-channel version 2 J per channel at 1064 nm
  • Pulse durations from 2 ns to 500 ns
  • Spatial Super-Gaussian beam profile
  • Low maintenance cost and long diode lifetime
  • Variable pulse duration and temporal pulse shape control (AWG) option available
  • Various customization possibilities to tailor for specific application
  • High efficiency diode pumping chambers
  • Small laser head footprint and OEM integration upon request
  • Internal system diagnostics
  • Thermally induced birefringence compensation for high pulse repetition rates
  • Integrated vacuum system for image translation for smooth Super-Gaussian beam profile
  • Burst version available
  • Optional thermally stabilized second and third harmonics generators
  • Optional industrial grade, portable laser housing with integrated power supplies and cooling units

Applications

  • Thomson Scattering
  • Multi-stage OPCPA pumping
  • Non-linear optics
  • Ti:S pumping

Description

ANL series electro-optically Q-switched nanosecond Nd:YAG amplifier systems deliver high energy pulses at high repetition rates.

A diode-pumped Q-switched nanosecond laser, based on industry-tested technology is used as a master oscillator of the system. It produces high-intensity, high-brightness pulses and is well suited for further amplification in linear amplifiers for high-energy Super-Gaussian output pulses. Employing electro-optical cavity dumping, the master oscillator can produce pulses which are as short as several ns with uniform beam profile and low divergence.

Alternatively customers own seed source can be implemented as master oscillator and amplified to required energy level for further amplification in main power amplifiers.

Power amplifiers are a chain of low-maintenance diode-pumped single and double pass amplifiers where pulses are amplified up to the required energy. During amplification, spatial beam shaping is employed in order to get a Super-Gaussian beam shape at the output.

Angle-tuned non-linear crystals harmonic generators mounted in temperature stabilized heaters are used for second and third harmonic generation. Harmonic separation system is designed to ensure high spectral purity of radiation and direct it to the output ports.

System control is available through control pad, USB and LAN interfaces (RS232 as optional). The system can be controlled from personal computer with supplied software for Windows operating system.

To tailor the laser for specific applications or requirements, various customization possibilities are available such as industrial grade, portable laser housing with integrated power supplies and cooling units; customer’s seed integration; multi-channel outputs; burst amplification and various other.

Angle-tuned non-linear crystals harmonic generators mounted in temperature stabilized heaters are used for second and third harmonic generation. Harmonic separation system is designed to ensure high spectral purity of radiation and direct it to the output ports.

System control is available through control pad, USB and LAN interfaces (RS232 as optional). The system can be controlled from personal computer with supplied software for Windows operating system.

To tailor the laser for specific applications or requirements, various customization possibilities are available such as industrial grade, portable laser housing with integrated power supplies and cooling units; customer’s seed integration; multi-channel outputs; burst amplification and various other.

Specifications

ModelANL400100ANL2k100ANL2001kANL2k100-Burst
MAIN SPECIFICATIONS 1)
Output energy
    at 1064 nm400 mJ2 000 mJ200 mJ2 000 mJ
    at 532 nm 2) 3) 260 mJ1 300 mJ130 mJ1 300 mJ
    at 355 nm 2) 120 mJ600 mJ60 mJ600 mJ
Pulse repetition rate100 Hz100 Hz1 kHz100 Hz
Pulse duration 4) 5 ± 1 nsAdjustable bursts
Pulse energy stability 5)
    at 1064 nm≤ 0.5 %≤ 2 %
    at 532 nm≤ 0.8 %≤ 4 %
    at 355 nm≤ 2 %
Long-term power drift 6)± 2 %
Beam spatial profileSuper-Gaussian 7)
Beam diameter 8)7 mm10 mm7 mm12 mm
Beam pointing stability 9)≤ 30 µrad
Beam divergence≤ 0.7 mrad≤ 0.5 mrad≤ 0.7 mrad≤ 0.5 mrad
Optical pulse jitter 10)≤ 0.2 ns
PolarizationLinear
PHYSICAL CHARACTERISTICS 11)
Laser head size (W×L×H mm)600×1200×300900×1800×300600×1200×300900×1800×300
Power supply size (W×L×H mm)553×600×830553×600×1230553×600×830553×600×1800
Umbilical length 12)2.5 m
OPERATING REQUIREMENTS 13)
Power requirements 14)208, 380 or 400 V AC, three phases, 50/60 Hz
Power consumption 15)≤ 6 kW≤ 10 kW
Water supply 15)≤ 8 l/min, 2 Bar, max 20 °C≤ 12 l/min, 2 Bar, max 20 °C
Operating ambient temperature22 ± 2 °C
Storage ambient temperature15 – 35 °C
Relative humidity (non-condensing)≤ 80 %
Cleanness of the roomISO Class 7
  1. Due to continuous improvement, all specifications are subject to change without notice. The parameters marked ‘typical’ are indications of typical performance and will vary with each unit we manufacture. Presented parameters can be customized to meet customer‘s requirements. All parameters measured at 1064 nm if not stated otherwise.
  2. Harmonic outputs are optional. Specifications valid with respective harmonic module purchased. Outputs are not simultaneous.
  3. Second harmonic specification is valid when only SH option is ordered. If TH/FH options are orders second harmonic efficiency is reduced to ~50 %.
  4. Standard pulse duration is 5 ns. Other pulse durations can be ordered within range of 0.2 – 500 ns. Output energy might differ depending on duration.
  5. Under stable environmental conditions, normalized to average pulse energy (RMS, averaged from 60 s). Energy stability in burst mode heavily depends on temporal burst shape.
  6. Measured over 8 hours period after 30 min warm-up when ambient temperature variation is less than ±2 °C.
  7. Super-Gaussian spatial mode of 6-11th order in near field.
  8. Beam diameter is measured at signal output at 1/e2 level for Gaussian beams and FWHM level for Super-Gaussian beams.
  9. Beam pointing stability is evaluated as movement of the beam centroid in the focal plane of a focusing element (RMS, averaged from 60 s).
  10. Optical pulse jitter with respect to electrical outputs: Trig out > 3.5 V @ 50 Ω.
  11. System sizes are preliminary and depend on customer lab layout and additional options purchased.
  12. Longer umbilical with up to 5 m available upon request.
  13. The laser and auxiliary units must be settled in such a place void of dust and aerosols. It is advisable to operate the laser in air conditioned room, provided that the laser is placed at a distance from air conditioning outlets. The laser should be positioned on a solid worktable. Access from one side should be ensured.
  14. Voltage fluctuations allowed are +10 % / -15 % from nominal value.
  15. Power consumption and water supply requirements deviate depending on system configuration.

Note: Laser must be connected to the mains electricity all the time. If there will be no mains electricity for longer that 1 hour then laser (system) needs warm up for a few hours before switching on.

Options

OptionDescriptionComment
- AWGArbitrary waveform generatorTemporal pulse shape control in 1 – 50 ns range by
125 ps step
- AWWater-air cooling optionReplaces or supplements Water-to-Water cooling unit. Heat dissipation equals total power consumption
- External vacuum supplyExternal vacuum pump and tubing
- Multiple channel optionMultiple outputs of same or different wavelength/energyUp to 8 channels
- GGaussian like spatial beam profileReduces the output energy of fundamental by ~80 %

Performance

Drawings

Power Supply

CabinetUsable heightHeight H, mmWidth W, mmDepth D, mm
MR-99 U455.5 (519 1) )553600
MR-1212 U589 (653 1) )553600
MR-1616 U768 (832 1) )553600
MR-2020 U889 (952 1) )553600
MR-2525 U1167 (1231 1) )553600
  1. Full height with wheels.

Publications

Found total :
2 articles, 2 selected
Application selected :
All Applications
All Applications
Scientific Applications
High Intensity Sources – laser produced plasma, x-ray source, extreme UV
Thomson Scattering – elastic scattering of electromagnetic radiation by a free charged particle

Characterization and calibration of the Thomson scattering diagnostic suite for the C-2W field-reversed configuration experiment

Related applications:  High Intensity Sources Thomson Scattering

Authors:  A. Ottaviano, T. M. Schindler, K. Zhai, E. Parke, E. Granstedt, M. C. Thompson and the TAE Team

The new C-2W Thomson scattering (TS) diagnostic consists of two individual subsystems for monitoring electron temperature (Te) and density (ne): one system in the central region is currently operational, and the second system is being commissioned to monitor the open field line region. Validating the performance of the TS’s custom designed system components and unique calibration of the detection system and diagnostic as a whole is crucial to obtaining high precision Te and ne profiles of C-2W’s plasma. The major components include a diode-pumped Nd:YAG laser which produces 35 pulses at up to 20 kHz, uniquely designed collection lenses with a fast numerical aperture, and uniquely designed polychromators with filters sets to optimize a Te ranging from 10 eV to 2 keV. This paper describes the design principles and techniques used to characterize the main components of the TS diagnostic on C-2W, as well as the results of Rayleigh scattering calibrations performed for the whole system response.

Published: 2018.   Source: Review of Scientific Instruments 89, 10C120 (2018)

Thomson scattering systems on C-2W field-reversed configuration plasma experiment

Related applications:  High Intensity Sources Thomson Scattering

Authors:  K. Zhai, T. Schindler, A. Ottaviano, H. Zhang, D. Fallah, J. Wells, E. Parke, M. C. Thompson and the TAE Team

TAE Technologies’ newly constructed C-2W experiment aims to improve the ion and electron temperature in a sustained field-reversed configuration plasma. A suite of Thomson scattering systems has been designed and constructed for electron temperature and density profile measurements. The systems are designed for electron densities of 1×1012 cm-3 to 2×1014 cm-3 and temperature ranges from 10 eV to 2 keV. The central system will provide profile measurements of Te and ne at 16 radial locations from r = -9 cm to r = 64 cm with a temporal resolution of 20 kHz for 4 pulses or 1 kHz for 30 pulses. The jet system will provide profile measurements of Te and ne at 5 radial locations in the open field region from r = -5 cm to r = 15 cm with a temporal resolution of 100 Hz. The central system and its components have been characterized, calibrated, installed and commissioned. A maximum-likelihood algorithm has been applied for data processing and analysis.

Published: 2018.   Source: Review of Scientific Instruments 89, 10C118 (2018)

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